Liquid-fuel furnace.



G. E. OANHAG.

LIQUID FUEL FURNACE. APPLICATION FILED 0(1T.1G, 1913.

1 1 2 l ,474. Patented D60. 15, 1914.

2 SHEETSSHEET 2 WITNESSES LNVENTOR THE NORRIS PETERS CO PHOTO-LUBE, WASHINGTON, D.

burner, so that the airfromsaid compart-y Seine, in France,

Furnaces; and I do ni srarns rarnnr orrrcn.

enonens EUGENE saunas, or ST.-DE1\TIS, FRANCE, assrenon r0 SOOIETEHANONYME DES ETABLISSEMENTS DELAUNAY-BELLEVILLfi OF sr-Dnms, FRANCE, A-COR- PORATION OF FRANCE.

LI UID-FUEL FURNACE.

Specification of Letters Patent. P t t d j1 5, 1914 Application filed October 16,1913. Serial N0." 795,511.

To all whom it may concern Be it known that I, Gnonc'ns EUGENE CANHAo, residing at St-Denis, Department 'of the have invented certainnew and useful Improvements in Liquid-Fuel hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The present invention relates to boiler furnaces heated bymeans of liquid fuel, and has for its object the provision of means for supplying the combustion supporting air to the fuel burners. j I

The invention consists in providing on the interior of the furnace, an air compartment, the lower part of which is'provided.

with relatively large openings disposed one directly above the jet issuing from each fuel ment is supplied in large blasts over arelatively large surface of the fuel jet.

The invention further contemplates the provision of air chambers located exteriorly I of the furnace and in communication with" theinterior air compartment to supply the same with the combustion supporting air to be supplied to the fuel burners,

The invention is illustrated in the accom- I drawings, in which I 1 is an eleyatlon of the interior look ng 1n the dlrectlon of panying Flgure arr compartment the arrow in Fig. 2; Fig. 2 is a vertical section taken on the line Y.Y .of Fig. 1'; Fig,

3 is a vertical sectiontaken on, the line Z-Z of Fig. 4; Fig. l is a horizontal section taken onthe line TT of Fig. 2. v j

Referring to the drawings, the casing of the furnace is indicated at A, with which the lower collector B of the boiler'coil's, and the furnace doors 0 are associated.

The furnace is provided with a plurality of oil burnersG, which may beof any suit able type, but in the present instance',-are of that type which is adapted to inject a fiat sheet-like jet of fuel into the furnace, as clearly shown at g in Fig. 4..

fuel burners having their adjacent edges citizen of the French Republic,

diverging from the nozzle of the burner toward the interior of the furnace to leave a relatively large V-shaped opening -2- 22'2, as clearly shown in Fig. 4. A "casing composed of. refractory plates F is secured to the inner wallof the furnace cas ing above the partition F, and curved downwardly around the inner edge of said partitionto form an air compartment, as shown in Figs. 2 and 3. Certain of the plates F intermediate the fuel burners extend to a lower level than those immediately adj acent the fuel burners. In this way,

an opening l is provided, cooperating with l the opening222l2 to permit the jet issuing from the fuelburner to pass through the lower partof the air compartment withoutobstruction. As shown'in thedrawings, the burners illustrated are of that type which direct the jet in a downward direce t1on and are so disposed with respect to the openingin the air v compartment, that said opening lies directly overthe entire jet.

The lower extremities of the refractory platesF are preferably spaced from the in-' .ner edges of-the plates F. toleave an opening through which the air may pass inx'a downward direction. i

' Aiir, is supplied to the, compartment E. i

formed bytheplates F, F and the wall of the furnace, from air chambers 1, preferably.

formed of sheet-metal and secured to the outer wall of the furnace. These chambers in'the present instancetake the form of horizontally disposed box-like structures communicating with the compartment E through relatively large openings provided in the wall of the furnace.

The air chambersl:-may be provided with the shutters e controlling communication between the chambers and any suitablej'heating device which may be employed to supply the chamhers -1 ;with heated air.

The-operation of such a construction is as'followsf Thea'ir admitted to the cham bers 1 passes freely to the compartment E, Y aportion of which is supplied in large quantities through the openings 2 222 in thefp'artition F. to the jet issuing from the burners. As the'opening is disposed directlyabove the jet, the blast of air descends directly thereupon and envelops the jet in a large quantity-0f fresh combustion supporting air. A portion of the air in the compartment E: passes through the openwhich represents the vertical expansion of ing between the inner edge of the plates F and the lower edge of the plates F, and isdirected between the adjacent jets issuing from the burners. The air so supplied from the compartment E serves to agitate the gases and mix therewith a large quantity of fresh air to hastenthe combustion The jets issuing from the burners expand in a lateral and Vertical direction to form V-shaped and sheet-like discharges, as clearly shown in Figs. 2 and 4, at gg'-g',

the jet, and at ggg, which represents the horizontal expansion thereof. As'the burners employed in the present instance are of that type whicheject a jet of the foregoing character, the opening in the partition composed by the plates F is preferably shaped as shown in the drawing, to conform with the shape of the jet, but obviously, burners of-other types may be'used, and the opening/through which the burner discharges may be shaped according to the character of thej'et issuing from such a burner. The

discharge end of each burner isshown as be ing disposed in substantially the same plane with the refractory plates F, but as the burners are inclined downwardly, the-body I ofthe jet which is directed downwardly lies Obviously, various Copies of this patent may be obtainedfor below the opening which supplies the blast of air to the jet. 7,

hereinbefore described without departing ifrom the spirit or scope of the invention, as

defined in the accompanying claims.

What I, claim is I r 1. In a furnace provided 'with a fuel burner, the combinationtherewith .of means to supply ablastof air to the jet issuing from the burner, said meansprovided with from the burner, said means provided with 1 an opening disposed in a horizontal plane located directly above the jet and extending throughout a part of its length, said -open changes and 1nodific a-. tions' can be made in the construction as ing being sufficiently wide to direct the air downwardly over the entire. width" of the jet at all points'throughout the" length of the opening.

3. In a furnace provided with a fuel burner, the combination therewith of means to supply a blast-of air to the jet issuing from the burner, said means provided with an opening located directly above the jet and extending throughout a part of its lengtlusaid opening being substantially triangular in shape, for the purpose described.

4. In a furnace, the combination of a fuel burner, a horizontal shelf like partition disposed inside of the furnace and substantiaHyin'line with'the nozzle of said burner,

'a caslng forming with said partition and with the wall of "the furnace an aircompartment, saidpartition having an opening above the jet issuing from the burner to direct a blast of air downwardly onto saidjet 5. In a furnace, the combination of a fuel burner, a horizontal shelf-likepartition disposed inside of the furnace and, substan- 1 tially in line with the nozzle of said burner,

a casing forming with-said partition and with the'wall of the furnace an air compartment, said partition having an opening above the jet issuing from the burner to direct a blastpf air downwardlyonto said jet, and an air chamber located eX- teriorly of the furnace andcomniunicating with the I said air; compartment.

6. In a furnace, the combination of a fuel I burner, a horizontal shelf-likepar-titiOndis= posed inside of the furnace and substan- 'tiall-y in line with the nozzle ofsaid' burner,

ing above the jet issuing from the-burner 'to direct a blast of air downwardly onto said jet, and'said casing beingspaced from the inner edge of said'fpartition to direct aportion of the; air downwardly between the said'jetsL 1 In testimony whereof I afiiX my signature, in-presence of two witnesses.

- GEORGES EUGENE. oA nAc;

Witnesses 'HAN'soN O. Come, EMILE KLo'K.

l casing forming with .said partition and with the wall of the furnace an air com- 'partment', said partition having an openfive cents each, by addressing the Commissioner of'ZBatents, 1 Washington, 1L0. o l 

